darkcomet | 3a5c2142b63d3b4058a083d8a0c8d624b46f492f7c280baeee14bd65656b646b

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2025, 17:25

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General

Target

JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Size

286KB
MD5

ba7109bab9ec6265539b89142e426d83
SHA1

60e6a9c21eeb1e80572cb6798c7cc0091489ca46
SHA256

3a5c2142b63d3b4058a083d8a0c8d624b46f492f7c280baeee14bd65656b646b
SHA512

5dc9248f5e80bebe75716e5876e42740a8322eea3dd970094d02df2b3cf1971569947c6a0308a87b13777a2ea68bfdc0d8039136baf0910ca50ad55944f60a87
SSDEEP

3072:q3rAsZQCByAxj0v3VGOcZKepLVIfdpxNqaxKZLoZzDu0Ly7Q9+Rjw4bkZbSpsOoC:lVvvFIdhUd8QxW7zRjrbk+sOYSUQF

Score

10^/10

darkcomet prv1 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

prv1

hackflor.no-ip.info:1605

Mutex

DC_MUTEX-QRC5UD6

Attributes

InstallPath
Windupdt\winupdate.exe
gencode
wSE7KtRakPrd
install
true
offline_keylogger
true
persistence
false
reg_key
winupdater

rc4.plain

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe

Checks BIOS information in registry 2 TTPs 3 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe

Executes dropped EXE 2 IoCs

pid	Process
4116	winupdate.exe
3052	winupdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-446031748-3036493239-2009529691-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Checks processor information in registry 2 TTPs 12 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeSecurityPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeTakeOwnershipPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeLoadDriverPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeSystemProfilePrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeSystemtimePrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeProfSingleProcessPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeIncBasePriorityPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeCreatePagefilePrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeBackupPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeRestorePrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeShutdownPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeDebugPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeSystemEnvironmentPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeChangeNotifyPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeRemoteShutdownPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeUndockPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeManageVolumePrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeImpersonatePrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeCreateGlobalPrivilege	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: 33	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: 34	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: 35	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: 36	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
Token: SeIncreaseQuotaPrivilege	4116	winupdate.exe
Token: SeSecurityPrivilege	4116	winupdate.exe
Token: SeTakeOwnershipPrivilege	4116	winupdate.exe
Token: SeLoadDriverPrivilege	4116	winupdate.exe
Token: SeSystemProfilePrivilege	4116	winupdate.exe
Token: SeSystemtimePrivilege	4116	winupdate.exe
Token: SeProfSingleProcessPrivilege	4116	winupdate.exe
Token: SeIncBasePriorityPrivilege	4116	winupdate.exe
Token: SeCreatePagefilePrivilege	4116	winupdate.exe
Token: SeBackupPrivilege	4116	winupdate.exe
Token: SeRestorePrivilege	4116	winupdate.exe
Token: SeShutdownPrivilege	4116	winupdate.exe
Token: SeDebugPrivilege	4116	winupdate.exe
Token: SeSystemEnvironmentPrivilege	4116	winupdate.exe
Token: SeChangeNotifyPrivilege	4116	winupdate.exe
Token: SeRemoteShutdownPrivilege	4116	winupdate.exe
Token: SeUndockPrivilege	4116	winupdate.exe
Token: SeManageVolumePrivilege	4116	winupdate.exe
Token: SeImpersonatePrivilege	4116	winupdate.exe
Token: SeCreateGlobalPrivilege	4116	winupdate.exe
Token: 33	4116	winupdate.exe
Token: 34	4116	winupdate.exe
Token: 35	4116	winupdate.exe
Token: 36	4116	winupdate.exe
Token: SeIncreaseQuotaPrivilege	3052	winupdate.exe
Token: SeSecurityPrivilege	3052	winupdate.exe
Token: SeTakeOwnershipPrivilege	3052	winupdate.exe
Token: SeLoadDriverPrivilege	3052	winupdate.exe
Token: SeSystemProfilePrivilege	3052	winupdate.exe
Token: SeSystemtimePrivilege	3052	winupdate.exe
Token: SeProfSingleProcessPrivilege	3052	winupdate.exe
Token: SeIncBasePriorityPrivilege	3052	winupdate.exe
Token: SeCreatePagefilePrivilege	3052	winupdate.exe
Token: SeBackupPrivilege	3052	winupdate.exe
Token: SeRestorePrivilege	3052	winupdate.exe
Token: SeShutdownPrivilege	3052	winupdate.exe
Token: SeDebugPrivilege	3052	winupdate.exe
Token: SeSystemEnvironmentPrivilege	3052	winupdate.exe
Token: SeChangeNotifyPrivilege	3052	winupdate.exe
Token: SeRemoteShutdownPrivilege	3052	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4116	winupdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 6116 wrote to memory of 4116	6116	cmd.exe	90
PID 6116 wrote to memory of 4116	6116	cmd.exe	90
PID 6116 wrote to memory of 4116	6116	cmd.exe	90
PID 3932 wrote to memory of 3052	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe	91
PID 3932 wrote to memory of 3052	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe	91
PID 3932 wrote to memory of 3052	3932	JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba7109bab9ec6265539b89142e426d83.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windupdt\winupdate.exe
  "C:\Windupdt\winupdate.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:3052

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windupdt\winupdate.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:6116
- C:\Windupdt\winupdate.exe
  C:\Windupdt\winupdate.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4116

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windupdt\winupdate.exe

Filesize
286KB

MD5
ba7109bab9ec6265539b89142e426d83

SHA1
60e6a9c21eeb1e80572cb6798c7cc0091489ca46

SHA256
3a5c2142b63d3b4058a083d8a0c8d624b46f492f7c280baeee14bd65656b646b

SHA512
5dc9248f5e80bebe75716e5876e42740a8322eea3dd970094d02df2b3cf1971569947c6a0308a87b13777a2ea68bfdc0d8039136baf0910ca50ad55944f60a87

Download Submit
memory/3052-15-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/3052-14-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/3932-1-0x0000000002280000-0x0000000002283000-memory.dmp

Filesize
12KB

Download
memory/3932-2-0x0000000002870000-0x0000000002871000-memory.dmp

Filesize
4KB

Download
memory/3932-0-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/3932-13-0x0000000002280000-0x0000000002283000-memory.dmp

Filesize
12KB

Download
memory/3932-12-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-18-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-23-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-16-0x0000000000680000-0x0000000000683000-memory.dmp

Filesize
12KB

Download
memory/4116-17-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/4116-8-0x0000000000680000-0x0000000000683000-memory.dmp

Filesize
12KB

Download
memory/4116-19-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-20-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-21-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-22-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-9-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/4116-24-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-25-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-26-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-27-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-28-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-29-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-30-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-31-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4116-32-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads